fix vars for db

ptp-chat/ptp-chat-db.yaml

@@ -32,16 +32,19 @@ spec:
       containers:
       - name: ptp-chat-db
         image: postgres:latest
-        envFrom:
-        - secretRef:
-            name: ptp-chat-secret
         env:
         - name: POSTGRES_USER
-          value: "${SPRING_DATASOURCE_USERNAME}"
+          valueFrom:
+            secretKeyRef:
+              name: ptp-chat-secret
+              key: SPRING_DATASOURCE_USERNAME
         - name: POSTGRES_PASSWORD
-          value: "${SPRING_DATASOURCE_PASSWORD}"
+          valueFrom:
+            secretKeyRef:
+              name: ptp-chat-secret
+              key: SPRING_DATASOURCE_PASSWORD
         - name: POSTGRES_DB
-          value: "praxistransfer"
+          value: praxistransfer
         ports:
         - name: http
           containerPort: 5432